SIGA Ownership | Who Owns SIGA?

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SIGA Ownership Summary

SIGA is owned by 48.07% institutional investors, 43.24% insiders, and 8.69% retail investors. Blackrock is the largest institutional shareholder, holding 5.50% of SIGA shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 1.73% of its assets in SIGA shares.

SIGA Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	SIGA	48.07%	43.24%	8.69%
Sector	Healthcare Stocks	488.17%	11.08%	-399.26%
Industry	Specialty & Generic Drug Manufacturers Stocks	43.51%	11.55%	44.95%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	3.91M	5.50%	$29.71M
Blackrock funding, inc. /de	3.63M	5.08%	$23.65M
Altravue capital	2.64M	3.70%	$15.86M
Vanguard group	2.48M	3.48%	$14.92M
Dimensional fund advisors lp	2.13M	2.98%	$12.78M
Hotchkis & wiley capital management	2.07M	2.89%	$13.48M
American century companies	1.41M	1.97%	$9.16M
State street	1.13M	1.59%	$8.57M
Geode capital management	1.13M	1.59%	$6.81M
Jupiter asset management	990.65K	1.39%	$6.46M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Altravue capital	2.64M	1.32%	$15.86M
First wilshire securities management	697.21K	1.24%	$4.55M
Penn mutual asset management	38.28K	0.44%	$249.59K
Summerhaven investment management	98.53K	0.42%	$642.38K
Legato capital management	536.51K	0.42%	$3.50M
Uniplan investment counsel	461.55K	0.30%	$3.01M
Denali advisors	391.10K	0.27%	$2.55M
General american investors	539.74K	0.23%	$3.52M
Cormorant asset management, lp	500.00K	0.22%	$3.79M
Significant wealth partners	43.72K	0.14%	$285.06K

Top Buyers

Holder	Shares	% Assets	Change
Cormorant asset management, lp	500.00K	0.22%	500.00K
Blackrock	3.91M	0.00%	458.39K
Csm advisors	358.26K	0.07%	358.26K
Altravue capital	2.64M	1.32%	326.63K
Renaissance	417.44K	0.00%	293.84K

Top Sellers

Holder	Shares	% Assets	Change
Hotchkis & wiley capital management	2.07M	0.04%	-1.09M
Van lanschot kempen investment management	-	-	-924.81K
First wilshire securities management	697.21K	1.24%	-889.64K
Millennium management	67.73K	0.00%	-459.83K
Price jennifer c.	-	-	-360.00K

New Positions

Holder	Shares	% Assets	Change	Value
Cormorant asset management, lp	500.00K	0.22%	500.00K	$3.79M
Csm advisors	358.26K	0.07%	358.26K	$2.33M
Lpl financial	62.93K	0.00%	62.93K	$477.65K
Kestra advisory services	50.94K	0.00%	50.94K	$306.15K
Walleye capital	49.08K	0.00%	49.08K	$320.00K

Sold Out

Holder	Change
Quest partners	-1.00
Nelson, van denburg & campbell wealth management group	-10.00
Financial gravity asset management	-18.00
Jones financial companies lllp	-39.00
Coldstream capital management	-89.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	175	6.71%	34,353,986	-2.06%	48	1.99%	94	27.03%	51	-12.07%
Mar 31, 2025	162	-9.50%	35,019,103	1.38%	49	2.09%	75	-15.73%	55	3.77%
Dec 31, 2024	170	-4.49%	33,321,321	-6.53%	46	1.87%	84	-9.68%	51	6.25%
Sep 30, 2024	176	10.69%	35,600,852	5.32%	49	2.21%	92	2.22%	48	20.00%
Jun 30, 2024	158	6.04%	33,803,788	0.66%	47	2.15%	89	28.99%	40	-14.89%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	1.24M	1.73%	-
Vanguard Total Stock Mkt Idx Inv	1.21M	1.69%	-26.68K
Avantis US Small Cap Value ETF	1.09M	1.52%	-
iShares Russell 2000 ETF	988.83K	1.38%	-18.80K
First Wilshire US SCV Equities SMA	600.95K	0.84%	-771.97K
American Beacon Small Cp Val R5	512.42K	0.72%	90.36K
Delaware Total Return A	510.39K	0.71%	-
Macquarie Wealth Builder Institutional	510.39K	0.71%	-
Kempen (Lux) Global Small-Cap I	474.24K	0.66%	-250.99K
Fidelity Small Cap Index	471.14K	0.66%	-

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	-
2025 Q2	-	-
2025 Q1	-	-
2024 Q4	-	-
2024 Q3	-	-

SIGA Ownership FAQ

Who Owns SIGA?

SIGA shareholders are primarily institutional investors at 48.07%, followed by 43.24% insiders and 8.69% retail investors. The average institutional ownership in SIGA's industry, Specialty & Generic Drug Manufacturers Stocks, is 43.51%, which SIGA exceeds.

Who owns the most shares of SIGA?

SIGA’s largest shareholders are Blackrock (3.91M shares, 5.50%), Blackrock funding, inc. /de (3.63M shares, 5.08%), and Altravue capital (2.64M shares, 3.70%). Together, they hold 14.28% of SIGA’s total shares outstanding.

Does Blackrock own SIGA?

Yes, BlackRock owns 5.50% of SIGA, totaling 3.91M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 29.71M$. In the last quarter, BlackRock increased its holdings by 458.39K shares, a 13.27% change.

Who is SIGA’s biggest shareholder by percentage of total assets invested?

Altravue capital is SIGA’s biggest shareholder by percentage of total assets invested, with 1.32% of its assets in 2.64M SIGA shares, valued at 15.86M$.

Who is the top mutual fund holder of SIGA shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of SIGA shares, with 1.73% of its total shares outstanding invested in 1.24M SIGA shares.

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